Magento 2 Module: Google Tag Manager

This module adds Google Tag Manager once it's configured and sends basic data layer information

Features

• Adds script and iframe for Google Tag Manager
• Adds dataLayer for following pages/events:
  • Every Page - page type + currencyCode
  • Product Page - ecommerce.detail
  • Search Page - search query and result count
  • Checkout Success - ecommerce.purchase

It should be easy to add more data. See the code for this.